De IPDect oplossing van Siemens ondersteund onderstaande functionaliteiten:

(Software V1 R4)

• Message Waiting Indication (MWI)
• Calling Name Presentation
• 3 Party Call Control (3PCC)
• Hold – incl. music on hold for holding subscriber
• Consult
• Toggle

• Attended/unattended transfer

• Message Waiting Indications for Voice Mails
• Call Forward Unconditional (CFU)

• Call Forward Busy (CFB)

• Call Forward No Reply (CFNRy)

• Call Forward Not Reachable (CFNRc) 
• Support of up to 300 Handsets (server solution only)
• Call Pickup Group (for OpenScape Voice only)
• Call completion (for OpenScape Voice only) 
• 2nd Line / Call Waiting (CW) 
• Time and date display at idle screen 
• Internal/external call ringer differentiation 
• Missed call list for incoming calls on a free Gigaset, including MWI signaling 
• Received call list 
• DTMF transmission 
• Integration of DECT handsets into MULAP groups 
• Group call possible between DECT IP handset and optiPoint / OpenStage (both phones ring when an incoming call is received; when the call is answered using one of the two phones, the other phone stops ringing) 

• Phonebook / Telefoonboek :
• Corporate directory: LDAP Access via DECT handset (Siemens OpenScape Office ODS)

• Group directory: Cordless internal directory (max. 400 entries)

• Private directory: handset internal directory

Functionaliteit overzicht per systeem: Bron: http://wiki.siemens-enterprise.com/wiki/call_feature_overview_for_HiPath_Cordless_IP_with_different_platforms

call feature overview for HiPath Cordless IP with different platforms

Call Feature	OpenScape Voice	OpenScape Office	HiPath 3000	HiPath 4000
outgoing/incoming calls
Calling Line Identity Presentation (CLIP)
Calling Name Presentation (CNIP)			--
hold – including music on hold while a caller is waiting
consult
toggle
attended/unattended transfer
3-party conference
Distinctive Ringing (internal/external calls) - SIP based			--	--
Message Waiting Indications for Voice Mails
Group Calls			not MULAP; Ringing groups only	AUN ONS
Call forwardings (busy/no reply/unconditional) station controlled			--
Attended / unattended transfer
2nd line / Call Waiting
3rd party call control			--	--
Call Pickup Group		--	--	--
Call completion		--	--	--
ringer tone mute by incoming calls
call reject
time and date display at idle screen
internal/external call ringer differentiation (device based)
missed call list for incoming calls on a free Gigaset, including MWI signaling
received call list
DTMF transmission (RFC 2833 based)
LDAP Access via DECT handset		via LDAP is access to the OpenScape directory service possible	with OpenScape Office HX; via LDAP is access to the directory service possible
SIP via TCP		not recommended	not recommended
Featurecodes including * and #		--	--	some features only